Seeman was born in Sivagangai district in Tamil Nadu to Mr. Senthamizhan and Mrs. Annammal Senthamizhan in nadar family. He married K. Kayalvizhi, daughter of K. Kalimuthu (former speaker of Tamil Nadu Legislative Assembly from Thevar family) in September 2013 in the presence of Pazha. Nedumaran and others. The ceremony was held according to Tamil traditions at the YMCA grounds, Nandanam, Chennai. He is also known as a politician and activist in Tamil Nadu. He is the Chief Coordinator of the organisation "Naam Thamizhar Iyakkam" which later became a political party of Tamil Nadu - "Naam Thamizhar Katchi" in 2010. As a director, he debut with the film Panchalankurichi in 1997 and Amaithipadai (1994) marked his onscreen debut in a bit role.
As of 2007, he began his acting career, debuting in the film Pori. Since, he has essayed supporting roles in films like Evano Oruvan and Mayandi Kudumbathar. He has also published two books - Vendradhu Aariyam; Thunai Nindrathu Dravidam and Thiruppi Adippaen. As an actor, most recently he appeared in Nagaraja Cholan MA, MLA and Kandupidi Kandupidi.